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Initial growth of maize in response to application of rock phosphate, vermicompost and endophytic bacteria

2012; UNIVERSIDADE FEDERAL DE VIÇOSA; Volume: 59; Issue: 2 Linguagem: Inglês

10.1590/s0034-737x2012000200016

2177-3491

Lílian Estrela Borges Baldotto, Luiz Gonzaga Jr. Santos Silva, Luciano Pasqualoto Canellas, Fábio Lopes Olivares, Marihus Altoé Baldotto,

Nematode management and characterization studies

Due to the high energy requirement and demand for non-renewable resources for the production of chemical fertilizers, added also to the environmental impact caused by the use of such products, it is important to intensify research on bio-based agricultural inputs. The use of nitrogen-fixing endophytic and phosphate solubilizing bacteria can provide these nutrients to the plants from the air and poorly soluble phosphorus sources, such as phosphate rock. The objective of this study was to evaluate the nutrition and initial growth of maize (Zea mays L.) in response to the inoculation of nitrogen-fixing and rock phosphate solubilizing endophytic bacteria, in single or mixed formulation, applied with vermicompost. The treatments containing bacteria, both diazotrophic and phosphate solubilizing, when compared to controls, showed higher levels of leaf nitrogen and phosphorus in maize, as well as higher growth characteristics. The application of vermicompost showed synergistic effect when combined with endophytic bacteria. Thus, the innovation of the combination of the studied factors may contribute to the early development of maize.